Grain wheel for harvester threshers



Oct. 24, 1933. A. B. wEL'rY GRAIN WHEEL FOR HARVESTER THRESHERS' Filed Jan. 30, 1933 2 Sheets-Sheet l I l l l l l I I Il .IIL

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GRAIN WHEEL FOR HARVESTER THRESHERS Filed Jan. 30, 1935 2 Sheets-Sheet 2 .I QQ l; .It qu inw/Z507 y f J y UNITED STATES PATENT OFFICEy GRAIN WHEEL FOR HARVESTER THRESHERS Albert B. Welty, Kenilworth, Iii., assigner to International Harvester Company, a corporation of New Jersey Application January 30, 1933. Serial No. 654,223

Claims. (Cl. 56-322) This machine relates to harvester threshers The harvester thresher, as illustrated, consists. and particularly 'to a combined grain and transof a main frame l0 supported on an axle 1l, which port wheel for such machines. is provided with round engaging wheels 12. The

As is well known in the art relating to harvester forward end of the main frame is provided with a 5 threshers, thesemachines usually comprise a rigid wheeled tongue truck 13 and a draft tongue 14. 55 main frame carried on an axle and a pair of The tongue truck is pivotally connected to a ver y wheels, which frame supports the grain separattical axis whereby the machine may be steered by ing mechanism on the thresher. Laterally offset changing the angular position of said truck. from the main frame is the harvester part of the At one end the axle 11 extends beyond the suplO machine which includes a supporting axle hinged- .porting wheel 12 `at that side of the main frame 60 ly and foldingly connected to the main frame or and is provided with a bracket 15 rigidly secured l, to the axle thereof This harvester axle is hingedthereto. Apivot block 16 is secured ,to said 101216K- ly connected on a longitudinal axis for movement et on a substantially vertical axis. A coupling oi' the harvester in a vertical plane to accommomember 17 is pivotally secured to the block 16 l5 date the irregularities in the eld. Usually the Ion a horizontal axis parallel t0 the 1in@ O draft 65 harvester part is also foldably connected to the when the harvester part of the machine is in latmain frame so that it may be swung back in a erally extended `or operative position. The harhorizontal plane for the purpose of narrowing vester part of the machine, which includes the materially the width of the machine soY that it conventionalcuttngmeehansm and the platform eo may more easuy be transported through gateways for receiving the grain, these elements not being 70 and along narrow highways. shown in the drawings,) is supported on an axle Itis quite common at the presenttime to provide 18. Said axle is pivotally Secured t0 the coupling harvester threshers with the folding Vfeature above member 17 al? 0116 end. IGS Other eld iS pVOally referred to. The present invention contemplates secured to an arm 19 which extends upwardly an improvement in a Athresher of this type, the and outwardly to form means for supporting the 75 principal object being-to provide a novel grain and outer end of the harvester. Supporting members transport wheel. Other objects 'will be apparent 20 and 21 extend forwardly to support the frame from the drawings and the detailed description to 22 of the harvester platform. As previously menfollow, tioned, this construction is wellknown in the `prior A preferred form of the device in rwhich the inf art and has not been illustrated in detail. so vention is embodied and by which the objects of The arm 19 extends upwardly a substantial disthe invention are obtained, are shown in the drawtale lbOVe the Xle l8- G S DYOVilBd al? GS ings, in which: `up'perend with a bearing sleeve 23 `which forms Figure l is a plan view showing diagrammatia' substantially vertical pivot for the standard 24 cally the essential elements of the frame of the 0f a yOke 25- The Sleeve 23 iS alled at its eHdS harvester thresher with the Iharvester part in opt0 'form hQlZOntal beating SufaCS Ol bearing erative position, the dotted lines showing thehar- 0011915 26 and 27 Vf/hlh are mounted 011. the vester part in folded or transport position; standard 24 respectively above and below the Figure 2 is an enlarged detail in elevation, show- Steeve The lower Cona); 27 amts the upper por" *9 ing the grain and transport wheel and the means non of the yoke 25' It 1S am this pomt of Contact 90 vthat the weight of the harvester is carried on by which 1t 1s attached to and supports the outer l end of the harvester platform; and the yoke 2e. A Cotter pln 28 extends thi oughfthe standard 24 above the up ercollar 26 whereb the Flgure 3 1S an fmd elevatlon of the Same ele' standard is held againstpvertical movementbwith ments shown m Flgure 2' Y respect to the sleevel 23 while being free to rotate 95 Only such parts of a harvester thresher have with respect thereta been illustrated as are necessary t0 dSClOSe the The yoke s'osel; rearwardly from pivot features of the present invention as such machines axis 0n therstandard 24, as illustrated in vFigure and their construction and operation are well 3. The arms of the yoke are vof considerable known in the prior art. length, whereby va comparatively large diameter 100 wheel 29 may be mounted in the yoke. A short shaft 30, extending through aligned openings in the arms of the yoke 25, provides an axle for the wheel 29. It will be noted that although the yoke is slanted somewhat away from the vertical position, the axis of the wheel is not far removed from the axis of the main axle 18 which carries the harvesting part of the machine.

A brace bar 31 removably connected to the rear of the main frame 10, extends diagonally forward and is removably connected to the outer end of the axle 18.

The purpose of the grain and transport wheel 29, as above'described, is well known to those skilled in the art. Said wheel supports the outer end of the harvesting part of the machine and must be so constructed that short angled turns of the main frame may be made without dragging or otherwise improper functioning of this wheel. When a sharp turn is made to the left, the grain wheel 29 merely follows around in its normal castering position with the yoke extending rearwardly from the pivot axis of the standard 24, which carries the yoke.

When a sharp turn of the machine is made to the right, which is the usual direction of turning when the machine is in operation, the pivot axis of the whole machine is toward the main frame side of the wheel 29, which necessitates that the grain wheel move rearwardly during the turn. By providing a large diameter wheel on a castering support with the axis of the wheel only a few degrees away from vertical, a construction has been obtained which will freely swing or caster around when backing or short turning to the right brings about movement to the rear of the outer end of the harvesting portion of the machine. The arched arm 19 has been provided to give sufficient clearance for the castering grain wheel to swing around freely to castering position during movement of the machine in any direction.

When the machine is to be transported the brace bar 31 is removed and the harvesting p0rtion of the machine is swung around to a trailing position, as shown in dotted lines in Figure 1. The wheel 29 automatically swings around about its castering axis and becomes a freely castering transport wheel, which is the proper arrangement for such a wheel. In this construction a grain and transport wheel has been provided which is very simple in construction and effective in operation. Moreover there are no adjustments or locks required when shifting the harvesting portion of the machine from one of its positions to the other.

It is to be understood that applicant has shown and described only a preferred construction of his novel grain and transport wheel and that he claims as his invention all modifications falling within the scope of the appended claims.

What is claimed is:

1. In a harvesting machine having a wheel supported main frame and an auxiliary frame structure for the harvester part of the machine pivotally connected to the main frame on a transverse axis and in combination therewith an arched wheel support rigidly secured to the outer end of the frame structure and extending upwardly and outwardly therefrom, and a grain and transport wheel pivotally mounted on said support, said support being arched sufliciently to permit unlimited castering of the wheel.

2. A harvesting machine having a wheel supported main frame and a laterally extending supporting structure for the harvester part of the machine, said structure being pivoted at one end to the main frame on transverse and longitudinal axes, and in combination therewith a grain wheel support rigidly secured to the frame structure at the outer end thereof and extending upwardly and outwardly therefrom, and a grain and transport wheel pivotally mounted on said support for free castering action about a substantially vertical axis. Y

3. A harvesting machine having a wheel supported main frame and a laterally extending supporting structure for the harvester part of the machine, said structure being pivoted at one end to the main frame on transverse and longitudinal axes, and in combination therewith a grain wheel support rigidly secured to the frame structure at the outer end thereof and extending upwardly and outwardly therefrom, a forked standard pivotally mounted on a substantially vertical axis on said support, and a grain and transport wheel pivotally mounted on a horizontal axis on said standard.

4. A harvesting machine having a wheel supported main frame, an axle for carrying the harvesting part of the machine pivotally connected at one end on transverse and longitudinal axes to the main frame, and in combination therewith a wheel support rigidly secured to the free end of said axle and arched upwardly and outwardly therefrom, and a grain and transport wheel pivotally mounted under said support for castering about a substantially vertical axis, said support being arched sufficiently to permit the grain wheel to caster thereunder.

5. A harvesting machine having a wheel supported main frame, an axle for carrying the harvesting part of the machine pivotally connected at one end on transverse and longitudinal axes to the main frame, and in combination therewith a wheel support rigidly secured to the free end of said axle and arched upwardly and outwardly therefrom, a standard pivotally connected to the end of said wheel support for angular movement about a substantially vertical axis, and a grain and transport wheel pivotally mounted on a horizontal axis on said standard.

6. A harvesting machine having a wheel supported main frame, an axle for carrying the harvesting part of the machine pivotally connected at one end on transverse and longitudinal axes to the main frame, and in combination therewith a wheel support rigidly nsecured to the free end of said axle and arched upwardly and outwardly therefrom, a standard pivotally connected to the end of said wheel support for angular movement about a substantially vertical axis,and a grain and transport wheel pivotally mounted on a horizontal axis on said standard, the axis of rotation of said wheel being spaced from the axis of the standard whereby the wheel trails in a definite position during movement in any one direction.

7. A harvesting machine having a wheel supported main frame, an' axle for carrying the harvesting part of the machine pivotally connected at one end on transverse and longitudinal axes to the main frame, and in Vcombination therewith a wheel support rigidly secured to the free end of said axle and arched upwardly and outwardlytherefrom, a standard pivotally connected to theend of said wheel support for angular movement about a substantially vertical axis, and a grain and transport wheel pivotally mounted on a horizontal axis on said standard,

its

the axis of said wheel beingV substantially in alignment with the axis of the axle which't supports and on which the harvester part of the machine is supported.

8. A harvesting machine having a wheel supported main frame anda harvester part foldingly connected to the main frame about a vertical axis, a wheel support extending outwardly and upwardly beyond the free end of the harvester part, and a grain and transport wheel pivotally mounted on said support, said support being arched to provide clearance for castering action of the grain and transport wheel.

9. In a harvesting machine of the class described a main frame, a harvester part including an axle laterally offset from the main frame and foldingly connected thereto for rearward and horizontal folding, an arm rigidly secured to the free end of the axle and extending upwardly beyond said axle, a yoke pivoted to the outer end of said arm on a vertical axis, a wheel pivoted on a horizontal axis on the offset portion of said yoke, the axis of said wheel being substantially in alignment with the harvester axle, and a brace connected to the main frame and to the harvester part for holding the harvester part in laterally extended position, said brace being removable for swinging the harvester part around to trailing position.

10. In a harvesting machine of the class described a main frame, a harvester part including an axle laterally offset from the main frame and oldingly connected thereto for rearward and horizontal folding, an arm rigidly secured to the free end of the axle and extending upwardly beyond said axle, a yoke pivoted to the outer end of said arm on a substantially Vertical axis free to pivot about a vertical axis in any direction, said yoke being offset from its pivot axis, a wheel pivoted on a horizontal axis on the offset portion of said yoke, and a brace connected to the main frame and to the harvester part for holding the harvester part in laterally extended position, said brace being removable for swinging the harvester part around to trailing position.

ALBERT B. WELTY. 

